10.6084/m9.figshare.4801717.v1Yaseen JamalSimon LaceyLynne NygaardK. SathianInteractions Between Auditory Elevation, Auditory Pitch and Visual Elevation During Multisensory Perception. Supplementary Material2017Brill OnlineCross-modal correspondenceaudiovisualspatialcongruency effect2017-03-30 09:29:09articlehttps://brill.figshare.com/articles/Interactions_Between_Auditory_Elevation_Auditory_Pitch_and_Visual_Elevation_During_Multisensory_Perception_Supplementary_Material/4801717<p>Cross-modal correspondences refer to
associations between apparently unrelated stimulus features in different
senses. For example, high and low auditory pitches are associated with high and
low visual elevations, respectively. Here we examined how this crossmodal
correspondence between visual elevation and auditory pitch relates to auditory
elevation. We used audiovisual combinations of highor low-frequency bursts of
white noise and a visual stimulus comprising a white circle. Auditory and visual
stimuli could each occur at high or low elevations. These multisensory stimuli
could be congruent or incongruent for three correspondence types: cross-modal
featural (auditory pitch/visual elevation), within-modal featural (auditory
pitch/auditory elevation) and cross-modal spatial (auditory and visual
elevation). Participants performed a 2AFC speeded classification (high or low) task
while attending to auditory pitch, auditory elevation, or visual elevation. We
tested for modulatory interactions between the three correspondence types.
Modulatory interactions were absent when discriminating visual elevation.
However, the within-modal featural correspondence affected the cross-modal
featural correspondence during discrimination of auditory elevation and pitch,
while the reverse modulation was observed only during discrimination of auditory
pitch. The cross-modal spatial correspondence modulated the other two
correspondences only when auditory elevation was being attended, was modulated
by the cross-modal featural correspondence only during attention to auditory
pitch, and was modulated by the within-modal featural correspondence while
performing discrimination of either auditory elevation or pitch.We conclude
that the cross-modal correspondence between auditory pitch and visual elevation
interacts strongly with auditory elevation.</p>